Question

By selling a flower vase for $Rs.600$, a shopkeeper gains $15\%$. Find its cost price.

Answer 1

Let the cost price of the flower vase be $x.$

So, according to the question,

$\begin{array}{cc}x+15\%\text{of}x& =600\\ x+\frac{15x}{100}& =600\\ \frac{115x}{100}& =600\\ x& =\frac{600\times 100}{115}\\ & \approx Rs.521.74\end{array}$

Hence, the cost price of the flower vase is $Rs.\mathrm{521.74.}$